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Showing 1–24 of 782 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Brain Diseases, Metabolic, Inborn Clear all
Recruiting No phase listed Observational

A Long-term, Post-marketing Safety Study of Palynziq in Patients With PKU (PALace)

NCT05813678
View directory record Official record
Conditions
Phenylketonuria (PKU)
Interventions
Pegvaliase
Drug
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
Not listed
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2033
U.S. locations
12
States / cities
Aurora, Colorado • Atlanta, Georgia • Chicago, Illinois + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Phase 2 Interventional Results available

N-Acetyl-L-Leucine for Ataxia-Telangiectasia (A-T)

NCT03759678
View directory record Official record
Conditions
Ataxia Telangiectasia
Interventions
IB1001
Drug
Lead sponsor
IntraBio Inc
Industry
Eligibility
6 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
No Longer Available No phase listed Expanded access

Compassionate Use of Triheptanoin (C7) for Inherited Disorders of Energy Metabolism

NCT01461304
View directory record Official record
Conditions
Very Long-chain acylCoA Dehydrogenase (VLCAD) Deficiency, Carnitine Palmitoyltransferase Deficiencies (CPT1, CPT2), Mitochondrial Trifunctional Protein Deficiency, Long-chain Hydroxyacyl-CoA Dehydrogenase Deficiency, Glycogen Storage Disorders, Pyruvate Carboxylase Deficiency Disease, ACYL-CoA DEHYDROGENASE FAMILY, MEMBER 9, DEFICIENCY of, Barth Syndrome
Interventions
triheptanoin
Drug
Lead sponsor
Jerry Vockley, MD, PhD
Other
Eligibility
1 Month and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 9, 2021 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting No phase listed Observational

NYSCF Scientific Discovery Biobank

NCT06203106
View directory record Official record
Conditions
ALS, Amyotrophic Lateral Sclerosis, Alzheimer Disease, Alzheimer Disease, Early Onset, Alzheimer Disease, Late Onset, Batten Disease, Corticobasal Degeneration, Dementia, Frontotemporal Dementia, Huntington Disease, Lewy Body Disease, Multiple Sclerosis, Multiple System Atrophy, Parkinson Disease, Parkinson's Disease and Parkinsonism, Progressive Supranuclear Palsy, INAD, Diabetes, Diabetes Mellitus, Diabetes Mellitus, Type 2, Diabetes Mellitus, Type 1, Macular Degeneration, Ovarian Cancer, Cervical Cancer, Uterine Cancer, Vaginal Cancer, Vulvar Cancer, PTSD, Post Traumatic Stress Disorder
Interventions
Biological Sample Collection
Other
Lead sponsor
New York Stem Cell Foundation Research Institute
Other
Eligibility
30 Days and older
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2045
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 2, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting Phase 2 Interventional

An Open-Label Study of CTI-1601 in Subjects With Friedreich's Ataxia

NCT06447025
View directory record Official record
Conditions
Friedreich Ataxia
Interventions
CTI-1601
Drug
Lead sponsor
Larimar Therapeutics, Inc.
Industry
Eligibility
2 Years to 60 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
8
States / cities
Los Angeles, California • Gainesville, Florida • Tampa, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Phase 1Phase 2 Interventional

A Fabry Disease Gene Therapy Study

NCT04040049
View directory record Official record
Conditions
Fabry Disease, Lysosomal Storage Diseases
Interventions
FLT190
Genetic
Lead sponsor
Spur Therapeutics
Industry
Eligibility
18 Years and older · Male only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
4
States / cities
Los Angeles, California • New York, New York • Pittsburgh, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2023 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Educational, Social Support, and Nutritional Interventions and Their Cumulative Effect on Pregnancy Outcomes and Quality of Life in Teen and Adult Women With Phenylketonuria

NCT01659749
View directory record Official record
Conditions
Pregnancy, Phenylketonuria
Interventions
Metabolic camp
Behavioral
Lead sponsor
Emory University
Other
Eligibility
11 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1995 – 2037
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Phenotype, Genotype and Biomarkers 2

NCT04875416
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis, Hereditary Spastic Paraplegia, Primary Lateral Sclerosis, Progressive Muscular Atrophy, Frontotemporal Dementia
Interventions
Not listed
Lead sponsor
University of Miami
Other
Eligibility
7 Years and older
Enrollment
217 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2031
U.S. locations
3
States / cities
Miami, Florida • Kansas City, Kansas • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History Study - Mitochondrial Disease

NCT01532791
View directory record Official record
Conditions
MELAS or m.3243 A>G Mitochondrial DNA Mutation Carrier
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
4 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Terminated Phase 3 Interventional

ALD-101 Adjuvant Therapy of Unrelated Umbilical Cord Blood Transfusion (UCBT) in Patients With Inherited Metabolic Diseases

NCT00654433
View directory record Official record
Conditions
Inherited Metabolic Diseases, Lysosomal Storage Disorders, Peroxisomal Storage Diseases, Inborn Errors of Metabolism, Mucopolysaccharidosis
Interventions
ALD-101
Biological
Lead sponsor
Aldagen
Industry
Eligibility
Up to 16 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
3
States / cities
Los Angeles, California • New York, New York • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 7, 2014 · Synced Jul 21, 2026, 6:08 PM EDT
Enrolling by invitation Phase 2 Interventional

Sirolimus for Leigh Syndrome

NCT06843811
View directory record Official record
Conditions
Leigh Syndrome
Interventions
Sirolimus
Drug
Lead sponsor
Matthew Demczko
Other
Eligibility
6 Months to 55 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Active, not recruiting Phase 3 Interventional

Clinical Study of DTX301 AAV-Mediated Gene Transfer for Ornithine Transcarbamylase (OTC) Deficiency

NCT05345171
View directory record Official record
Conditions
OTC Deficiency
Interventions
DTX301, Placebo, Oral Corticosteroids, Placebo for oral corticosteroids, Sodium Acetate
Genetic · Other · Drug
Lead sponsor
Ultragenyx Pharmaceutical Inc
Industry
Eligibility
12 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2031
U.S. locations
4
States / cities
Los Angeles, California • Aurora, Colorado • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Remote Neurocognitive and Psychological Assessment in PKU

NCT04943393
View directory record Official record
Conditions
Phenylketonurias
Interventions
nointervention
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 40 Years
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Atlanta, Georgia • Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 21, 2022 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 2 Interventional Results available

A Phase 2, Pharmacokinetic (PK) Study of 6R-BH4 Alone or 6R-BH4 With Vitamin C in Subjects With Endothelial Dysfunction

NCT00532844
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Sapropterin Dihydrochloride, Sapropterin Dihydrochloride and Vitamin C
Drug
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
18 Years to 75 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated May 16, 2021 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Safety, Pharmacodynamics, and Efficacy of Migalastat in Pediatric Subjects (Aged >12 Years) With Fabry Disease

NCT04049760
View directory record Official record
Conditions
Fabry Disease
Interventions
migalastat HCl 150 mg
Drug
Lead sponsor
Amicus Therapeutics
Industry
Eligibility
12 Years to 17 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
5
States / cities
Tampa, Florida • Atlanta, Georgia • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 3 Interventional Results available

Study to Compare the Efficacy and Safety of Oral AT1001 and Enzyme Replacement Therapy in Patients With Fabry Disease

NCT01218659
View directory record Official record
Conditions
Fabry Disease
Interventions
migalastat hydrochloride, agalsidase
Drug · Biological
Lead sponsor
Amicus Therapeutics
Industry
Eligibility
16 Years to 74 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
8
States / cities
Los Angeles, California • Aurora, Colorado • Decatur, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2018 · Synced Jul 21, 2026, 6:08 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Palliative Care Needs of Children With Rare Diseases and Their Families

NCT06938542
View directory record Official record
Conditions
Trisomy 13 Syndrome, Arthrogryposis Congenita Multiplex With Intestinal Atresia, Asparagine Synthetase Deficiency, CHARGE Syndrome, Early Infantile Epileptic Encephalopathy, FOXG1 Syndrome, KBG Syndrome, Noonan Syndrome, Severe Hemophilia A, Short Bowel Syndrome, Beta-Propeller Protein-Associated Neurodegeneration, Brain Injury of Prematurity With Periventricular Leukomalacia, Chromosome 17p13.3 Microdeletion Syndrome, Chromosome 1q43-1q44 Deletion, Cockayne Syndrome, Congenital Diaphragmatic Hernia, End-Stage Renal Disease With Cloacal Anomaly, Mitochondrial Depletion Disorder, Severe Factor VII Deficiency
Interventions
Family Centered pediatric palliative care for family caregivers of children with rare diseases.
Behavioral
Lead sponsor
Children's National Research Institute
Other
Eligibility
12 Months to 99 Years
Enrollment
480 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 21, 2026, 6:08 PM EDT
Completed Phase 2 Interventional Results available

Long-Term Extension of Previous rAvPAL-PEG Protocols in Subjects With PKU (PAL-003)

NCT00924703
View directory record Official record
Conditions
Phenylketonuria
Interventions
rAvPAL-PEG
Drug
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
16 Years to 55 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2019
U.S. locations
14
States / cities
Aurora, Colorado • Gainesville, Florida • Chicago, Illinois + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2021 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting No phase listed Observational

A Global Prospective Observational Study of Women With Fabry Disease and Their Infants During Pregnancy and Breastfeeding

NCT04252066
View directory record Official record
Conditions
Fabry Disease
Interventions
migalastat
Drug
Lead sponsor
Amicus Therapeutics
Industry
Eligibility
Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 7, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting No phase listed Observational

A Long-term Follow-up Study of Gaucher Disease

NCT03190837
View directory record Official record
Conditions
Gaucher Disease
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
200 participants
Timeline
2017 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Withdrawn Phase 2Phase 3 Interventional

Trial of Kuvan in Lesch-Nyhan Disease

NCT00935753
View directory record Official record
Conditions
Behavioral Manifestations of Lesch-Nyhan Disease
Interventions
sapropterin
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
4 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2019 · Synced Jul 21, 2026, 6:08 PM EDT
Recruiting Phase 1Phase 2 Interventional

A Phase 1/2 Study of Intravenous Gene Transfer With an AAV9 Vector Expressing Human Beta-galactosidase in Type I and Type II GM1 Gangliosidosis

NCT03952637
View directory record Official record
Conditions
Lysosomal Diseases, Gangliosidosis, GM1
Interventions
AAV9-GLB1, Abdominal ultrasound, Rituximab, Sirolimus, Methylprednisolone, Prednisone, Audiology assessment with ABR, Bone density scan (DEXA), Electrocardiogram (EKG), Echocardiogram, Electroencephalogram (EEG) awake and extended overnight, Laboratory tests, Lumbar puncture, Brain MRI/MRS/fMRI, Neurocognitive testing, Neurology exam, PICC or other Central line placement, Skeletal survey, Skin biopsy, Speech and modified barium swallow study, Ophthalmology exam
Biological · Procedure · Drug + 3 more
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
6 Months to 12 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Jul 21, 2026, 6:08 PM EDT
Completed No phase listed Observational

Sjogren-Larsson Syndrome: Natural History, Clinical Variation and Evaluation of Biochemical Markers

NCT01971957
View directory record Official record
Conditions
Sjogren-Larsson Syndrome (SLS)
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2023
U.S. locations
2
States / cities
Omaha, Nebraska • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 7, 2024 · Synced Jul 21, 2026, 6:08 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Proxy-Reported Symptoms and Quality of Life Survey in Zellweger Spectrum Disorders

NCT03440905
View directory record Official record
Conditions
Zellweger Spectrum
Interventions
Not listed
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 15, 2019 · Synced Jul 21, 2026, 6:08 PM EDT